... ,end surface and bevel bound of precise parts.The design of the indicator stand is delicate and reasonable,and ... the testing instrument is inproved.Main technique parameters:Normal type:The accuracy of the radial rotation is 0.003mm. ... of the two finials is 0.005mm(A03,B03,type),0.008(A05,B05type),0.02mm(A10,B10type).The ... lengths of the tested part are 300mm,500mm,1000mm. New Type of Bench Center